Display panel, display device, input/output device, data processing device

Abstract

A novel display panel that is highly convenient, useful, or reliable is provided. The display panel includes a display region and includes a first pixel, a second pixel, a third pixel, and a filter. The first pixel emits light with a spectrum having a local maximum at a first wavelength, the second pixel emits light with a spectrum having a local maximum at a second wavelength, and the third pixel emits light with a spectrum having a local maximum at a third wavelength. The filter includes a region overlapping with the first pixel, a region overlapping with the second pixel, and a region overlapping with the third pixel, and the filter has a transmittance spectrum having local minimums at a fourth wavelength and a fifth wavelength. The second wavelength is longer than the first wavelength. The third wavelength is longer than the second wavelength. The fourth wavelength is between the first wavelength and the second wavelength. The fifth wavelength is between the second wavelength and the third wavelength.

The invention claimed is: 
     
       1. A display panel comprising:
 a display region, 
 wherein the display region comprises a first pixel, a second pixel, a third pixel and a filter, 
 wherein the first pixel is configured to emit light with a spectrum including a local maximum at a first wavelength, 
 wherein the second pixel is configured to emit light with a spectrum including a local maximum at a second wavelength, 
 wherein the third pixel is configured to emit light with a spectrum including a local maximum at a third wavelength, 
 wherein the filter comprises a first region, a second region and a third region, 
 wherein the first region and the first pixel overlap each other, 
 wherein the second region and the second pixel overlap each other, 
 wherein the third region and the third pixel overlap each other, 
 wherein the first region, the second region and the third region have the same transmittance spectrum, 
 wherein the transmittance spectrum has local minimums at a fourth wavelength and a fifth wavelength, 
 wherein the second wavelength is longer than the first wavelength, 
 wherein the third wavelength is longer than the second wavelength, 
 wherein the fourth wavelength is between the first wavelength and the second wavelength, and 
 wherein the fifth wavelength is between the second wavelength and the third wavelength. 
 
     
     
       2. The display panel according to  claim 1 ,
 wherein the filter has a transmittance lower than or equal to 0.5 in a wavelength band having a width of 20 nm including the fourth wavelength, 
 wherein the filter has a transmittance lower than or equal to 0.5 in a wavelength band having a width of 30 nm including the fifth wavelength, and 
 wherein the filter is a multilayer film. 
 
     
     
       3. The display panel according to  claim 1 ,
 wherein the first pixel comprises a light-emitting element having a microcavity structure, 
 wherein the microcavity structure comprises a first reflective film and a second reflective film, 
 wherein the first reflective film and the second reflective film overlap each other, and 
 wherein the light-emitting element comprises a first electrode, a second electrode, and a light-emitting layer between the first electrode and the second electrode. 
 
     
     
       4. The display panel according to  claim 3 ,
 wherein the second pixel comprises the light-emitting layer and a first adjustment layer, 
 wherein the third pixel comprises the light-emitting layer and a second adjustment layer, and 
 wherein the second adjustment layer has a longer optical distance than the first adjustment layer. 
 
     
     
       5. The display panel according to  claim 1 ,
 wherein the display region comprises a first group of pixels, a second group of pixels, a scan line and a signal line, 
 wherein the first group of pixels are arranged in a row direction, 
 wherein the first pixel is included in the first group of pixels, 
 wherein the second group of pixels are arranged in a column direction intersecting the row direction, 
 wherein the second group of pixels comprises the first pixel is included in the second group of pixels, 
 wherein the scan line is electrically connected to the first group of pixels, and 
 wherein the signal line is electrically connected to the second group of pixels. 
 
     
     
       6. The display panel according to  claim 1 ,
 wherein the display region comprises 2000 or more pixels per inch, and 
 wherein the first pixel is included in the 2000 or more pixels. 
 
     
     
       7. A display device comprising:
 the display panel according to  claim 1 ; and 
 a control portion, 
 wherein the control portion is supplied with image data and control data, 
 wherein the control portion generates data on the basis of the image data, 
 wherein the control portion generates a control signal on the basis of the control data, 
 wherein the control portion supplies the data and the control signal, 
 wherein the display panel is supplied with the data and the control signal, and 
 wherein each of the first pixel, the second pixel and the third pixel performs display on the basis of the data. 
 
     
     
       8. An input/output device comprising:
 an input portion and a display portion, 
 wherein the display portion comprises the display panel according to  claim 1 , 
 wherein the input portion comprises a sensing region, 
 wherein the input portion senses an object approaching the sensing region, and 
 wherein the sensing region comprises a region overlapping with the first pixel. 
 
     
     
       9. A data processing device comprising:
 an arithmetic device and an input/output device, 
 wherein the arithmetic device is supplied with input data or sensing data, 
 wherein the arithmetic device generates control data and image data on the basis of the input data or the sensing data, 
 wherein the arithmetic device supplies the control data and the image data, 
 wherein the input/output device supplies the input data and the sensing data, 
 wherein the input/output device is supplied with the control data and the image data, 
 wherein the input/output device comprises a display portion, an input portion, and a sensing portion, 
 wherein the display portion comprises the display panel according to  claim 1 , 
 wherein the display portion displays the image data on the basis of the control data, 
 wherein the input portion generates the input data, and 
 wherein the sensing portion generates the sensing data. 
 
     
     
       10. A data processing device comprising one or more of a keyboard, a hardware button, a pointing device, a touch sensor, an illuminance sensor, an imaging device, an audio input device, an eye-gaze input device, and an attitude detection device, and the display panel according to  claim 1 .